Artificial intelligence is deeply integrated with medical diagnosis, and intelligent colonoscopy technology has broad room for development. At present, the assist device of colonoscopy is insufficiently studied. It is the part that needs to be further explored in the development of artificial intelligence colon diagnosis and treatment technology. The study will be conducted at the Digestive Endoscopy Center and it is expected that 380 subjects will participate voluntarily. Subjects met: 1) routine colonoscopy; 2) willing to provide relevant information required by the experiment; 3) signed informed consent for the study. This topic focuses on the colonoscope assist device, through the combination of power assisting device, dynamic analysis, and migration expert skills, to achieve a combination of intelligent power and precise treatment, and establish a prototype of the patient-colonoscopy-assisted assist system-doctor's four-in-one diagnosis and treatment system.

Inclusion Criteria:

1. routine colonoscopy;
2. Willing to provide relevant information required by this experiment;
3. Sign the informed consent form for this study.

Exclusion Criteria:

1. can not tolerate colonoscopy;
2. Information about the requirements of this study cannot be provided;
3. Questionnaires cannot be conducted.

After full informed consent, outpatients undergoing a physical examination for colonoscopy